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The Stumpff lock

A researcher reaches for a strand of the Stumpff lock in a lab.
A researcher reaches for a strand of the Stumpff lock in a lab. Photo: Anthi Tiliakou

The Stumpff sample belonged to Beethoven. It is the lock of hair from which the composer’s whole genome was sequenced, allowing the researchers to make new insights regarding Beethoven’s health and genealogical history.